Stand boiler



June 23. 1925.

M. GREENBERG STAND BOILER Filed Nov. 8. 1922 has a connection at 8 Patented June 23, 1925 UNITED STATES-PATENT MAX eannnnnnqor CLEVELAND, OHIO, Ass1G'1\ion on ONE-HALF o r ma KANTON AND ONE-HALF T0 senile GREENBERG, BOTH or CLEVELAND; 01110.

' STAND BOILER,

Application filed; November 8,192 2 7 '0 all whom it may concern: I

Be it known that 1, MAX Gnnnnnnne, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and 5 State of Ohio, have invented certain new and useful Improvements in Stand Boilers,

of which the following is a specification.

This invention relates to stand boilers, and in some respects is an improvement on the boiler or water heater shown in my United States Patent #1,980,838 issued April 13, 1909.

The boiler is of that type provided with a central fire tube orflue, within asurroundr ing water space, a coil of water pipes extending through the flue and in the space below the same above the burner, this pipe being connected at one end to the main water chamber of the boiler and at the other end to the outlet, said outlet being also connected to the water space in the boiler shell.

The object of the present invention is to provide such a boiler with certain improvements of construction, as will be more fully apparent from the following description, one

feature of the improvement relating to the circulation connections and another to a thermostatic connection.

In the accompanying drawings Fig. 1 is a vertical section of the structure. Fig. 2 is a section on the line '2-2 of Fig. 1; and Fig. 3 is a section on the line 3 3 of Fig. 1.

The boiler includes a tank or cylinder 6, with a cap 6 and a base 6", and withinthis cylinder a large water chamber is formed, by means of a central fire tube 11 with conical ends 11 and 11 connecting the bottom and top thereof with the wall of the cylinder 6.

The cold water inlet is indicated at 7, the inlet pipe extending as indicated at 7 down into the lower part of the tank. The outlet pipe 8 connects to a header 10 located in the upper part of the cylinder.

projecting clownwardly into'the tank. The header is also connected to the upper ends of the tubes 10 and 10 which form the continuation of the two coils 9 and 9 the latter being located in the conical space under the tank, above the burner 15, and the pipes 10 and 10 extending through or within the tube 11. The header 10 also has a connection at 10 with the top of the tank. 16 indicates a drain cock from the bottom of the tank.

. through the pipe 8*,

This header.

swamas i i [A maritime. urtle e es afiherme stat which, by means not shown, controls the supply of gasto the burner 15. This tube 141 is connected atits upper end to the tank through the outer wall of the latter, and at 60 its lower endis connected to a tube 13 which has an opening 13 located directly below the lower end of the cold water inlet pipe 7*.

Mounted within the lower part of the tank is a shell or shield 12 which is conical in shape and is spaced slightly from the conical end bottom piece 11 of the tank. It is found that this shell will prevent sweating of the outside of the tank in cold weather, as it serves'to direct the heated water in the tank upwardly around the tube 11, and the cooler u ater circulating down the outside of the tank will have less tendency to produce .condensation on the outside of the tank.

The cover 6 at the top encloses the upper part of the boiler and serves to conduct the products of combustion to any suitable stack or outlet.

In operation, there is a circulation through the pipes 10 and 10 and the coils, and also fromthe tank upwardly through the connection 10- to the header and downwardly and this water mixes with the water circulating through the coils. When a faucet is opened, the water is drawn through the pipe 10 from the hottest part of the tank, and also to some extent through the pipe 8, and this tempers the water in the manifold 10*. The heated water is therefore drawn from various parts of thedevice and the boiler is re-supplied with water cooling the thermostat and providing a great supply of gas to the burner accordingly, so that as water is drawn the burner combustion will be increased, thereby providing an automatic control of the fuel and heat supply.

The invention is not limited to the details shown and described, but modifications may be made in various ways within the scope of the following claim.

I claim: A stand boiler having a tank with a central flue, provided with conical sections at the top and bottom, a transverse header in the upper conical section of the flue, a water under the coil, a connection between the header and the top of the tank, and another connection between the header andthe tank, the latter connection extending downwardly into the tank below the first mentioned con- 'nection, said connectionsvbeing independent 15 of the water heating pipe. to c In testimony whereof, I afiix my signature in presence of twowitnesses.

MAX GREENBERG. lVitnesses:

JOHN A. BOMMHARDT, ROBERT Bowm 

